Railway-signal.



. vISAIEIITEII APR. 7 c. .1). DEA'RDURFI a; B. I.. MunoNouGH.

RAILWAY SIGNAL. APPLIoATIoN FILED un s, 1901; 4

' v y zsnnETs-SHBET 1.

No. 883,940.- PATENTED APR. '7, 1908. C. D. DBARDURFF & B. L. MUDONOUGH.

RAILWAY SIGNAL.

APPLICATION FILED MAY a, 1907.

2 SHEETS-SHEET 2.

m y W 0 w w UNITED STATES APATENT oEEIcE.

- CHARLES D. DEAEDUEEE AND BERNARD LEo MCDoNoUGnnE NEWARK, omo.

RAILWAY-SIGNAL.

l Specicaton of Letters Patent. Application led Mays/,- 1907. Serial No.872,624.

' Patented-Ap1'il '7, 1908.

' To all .whom it may concern: l A f Be it known that we, CHARLES D.,DEAR- DUR'FF and BERNARD LEO MeDoNoUGH, citi# rovements inRailway-Signals, of which the The invention has for its'object toapprise A other, ini

lng means into play, and other means where-r the engineer, motormanorother operator of a car. or ,trainwhether driven by steam,elecrvtricityor other motive power of impending danger, thereby avertinga wreck, co1 sion or se ers an goods carried thereby. T e inventloncontemplates a signal mechanism upon the car, locomotive orothervehicle, a trip mechanism for bringing the signalf by the operatorin the tower or at the station may receive' 'a signal when a train orcar is ap- -proachi'ng andmay set a trip so as to autoj maticallyoperate the signaling means on the approaching car or train so as togive ample warning t the engineer or operator of dan- 'er ahead, wherebythe car or train may be rought to a standstill.'

Fora full description of the invention andv the merits thereof and alsoto acquire a `knowledge of the details of construction and the means forveecting the result, reference is to be had to the following descriptionand' accom Yanying drawings. I

e the: invention may be adapted to different forms and conditions bychanges in the-structure and minor details-without defparting from thespirit or essential features thereof, still the preferred embodiment isshown in the accompanying drawings, in whichz. Y

Figure 1 is a front view of a locomotive engine provided vwith signalmechanism em- .bodying-- thefinvention.' Fig. 2 is a detail4,perspecti,v erview of the signal trip and ad- `)unc/tive partsfmountedu on the locomotive e e, car or other -vehic e. Fig.`3 is a det pers"ective view ofthe catch and the operatmg ever.V Fig. 4.is a detail viewin elevation of one form of track trip showing the train trip arrangedto `co crate therewith.

' Fig. 5 is a modidform o track trip. Fig. 55.

.. `in. nas.

6. is a--sectionai view of the track trip to the locomotive,car orvehicle.

to the rolling stock and the pas# to in the following description andindicated 1 in all the views of the drawingsby the same. referencecharacters.

The inventioncontemplates complemental trips, Aone applied to thetrackand the other The track trip maybe mounted to turn ortohaveare lciprocating movement 'imparted thereto. T

e trip 1 is mounted on a shaft 2 and is held in upright position bymeansof a spring 3, the latter. encircling an eye-bolt 4 and exerting adownward pull upon the lower end of the trip through said eye-bolt. Thetrip 1 is 'of the nature of a short bar and is pivotally mounted betweenits ends as at-2,'1ts lower end beingl coupled to the upper end of theeye-bolt 4, said eye-bolt ha an adjustable stop upon its lower threa edend, the same consisting of a set nut 5 and washer 6. A housing 7encircles the spring 3 and lower portion of the bolt and 'protects YsaidpartsA trom or interference by any forel matter such as ice, snow, mud,ballast or t e like. A casting 8 supports the track'tnip and adjunc'tiveparts fand 1s providedvatopposite sides with wings which overlapadjacent ties and are spikedv or bolted thereto.' The spring 3 holds thetrip l in upright position and admits of the same yielding in eltherdirection so as to easel the impact of the blow incident to the train'and track trips coming to ether.

orderthat theoperator in the tower or the attendant atlthe station orother place provided for an attendant, may be advised of. the ap roachof a train, a connection is interpose 'between the track trip and thetower or station, said connection being preferably an electric conductorby means of whichea signal circuit is closed to give warning to theoperator( The signal 9 may be 'of vany-variety and is included in acircuit comprising wires 10 and 11.

The wire 10 is 1n electric connection with the trip 1 through the frame8 and shaft 2, whereas the wire 11 is in electric connection withacontact v12 which is electrically'insulated romthe trip `1 terial isapplied to the trip 1 and the contact 12 -norma y bears thereagainst,but/Wham 'tHe-"trip 1 is moved either to the infie the left, theinsulating block 13 is withdrawn from engagement with theeontact 12 andthe andy frame-8. A block 13 of insulating ma- 105 ,1

, Y 11:10 llatter makes electaiccennecon 'with the-trip.' :and clonesthe signal `circuit, -Wherebytheoprotary movement to the spur wheel 16 wchplrrojects or retracts thetripl, according one directionprojectsthe'block -19 and Vro-v i so both to the right-and to tlile4 left inaddition Wheel '15. andA-its-ends are connected to` aA 10 lever 18located in the tower, station or'other lit iadesired to projectthesarneinto the path of the trip upon the -car or other vehicle. Uponmoving the lever 18, the sprocket 17 is operated to turn the shaft 2-and to im art either to the ection of'movement of t elever 18.

,y The trip in'thelatter case, consists of .a -block 20 loose 'u on theshaft 2. The 'block 19 is adapte to 'slide Within said casingand isprovided with a rack bar 21l in 'mesh with the "jteeth'ofth'e spur wheel16. It thus be lunderstood that-rotation of the shaft 2 in tation in theopposite direction retracts ysaid block. The caslng is connected to theframe v8 in substantiallg trip 1, therebyT a nntting of the' tripturning to its reciprocatl movementto be projected into' the path of t etrain tiipor to be withdrawn from the path ofsaid train trip.- Thisconstruction admits of the trip being projectedA by the operator at thestation or tower so as to actuate the signal upon the car, locomotive orthe like, When'it may be required to hold` the same atthe stationfor anypur- 40'pose. n

. The train trip 22 consists of a projection at or -nearone end of arock shaft 23 which is vm'o'untedin bearings 24 connected to the lo-l`comotive, car or other vehicle. Angularly displosed rods 25 connect'the bearings` 24 Wit the car and'have screw thread connection with thesaid bearings to admit of prop- 4erly positioningthe latter as to'heightand longitudinal disposition to obtain proper position of the shaft andtrips. An arm 26 is fast to the rock shaft 23 and`has a springconnection with a convenient ortion of the locomotive, car or vehicle,to `old the rock shaft 23 and trip 22 in a given position. A clevis `27has pivotal connection with the forked end. of a hanger28 andv receivesan eye-bolt 29 the latter having pivotal connectlonwith tl earm 26.` A srin 3G-mounted u *loathe .eye-bolt y,and con 4eff-between the 501 v9.810f-.hold illefOQk Shaft Yand trip redetermined,y positionand 'gto returnsaid."k parte@ to Vnormal position when actuated and'repased from theoperating means; An arm" 3 ,fasttotherock shaft 22 is connected eratorat the tower or at the stationis advisedconvenient place foroperating-the trip whenA by. cord, chain or analogous connection 32 witha catch 33 which-normallyholds the signalmeans in restraint and out ofoperapasses over and varound suitable connection pulleys 34.-4 The catch33 is heldin' locked engagement with a lever 35 .by means of a spring36. The lever 35 is pivotedat 37 and is acted uponby means of a spring38. A valve 39 is adalpted to be held open by the ressure of the 'a tankor reservoir 41 for containing compressed alr. f'

19 and aframe or casing 20,-the latter beingv the same manner as the"adapted to be operated -by means of; the

when the valve 39 is open. .A push ro'df43 when pressed upon depressesthe lever 35 and enables the catch 33 to linterlock therethe valve 39which latter automatically closes and shuts off the supply of compressedair to the signal. When thetrain trip 22 is struck by the track trip,the shaft 23 is rocked and the connection '32 pulled u ing the catch 33'away ence of its actuating spring 38- and opens the valve39 and permitsoperation of the signal which warns the engineer, motorman or.opportunity may be -afforded'to bring the car or train to. a standstillor to slacken the lualty. The si al is of especial advantage when theusuaslignals are'obstructed either by darkness or by fog or smoke orthrough failure of the ordinary track signals to work. Having thusdescribed the invention, what is claime as new is:

1. In combination, a trip mounted to receive an oscillatory movement, apivoted raffs'top fitted to "theV end of an-.eye- 1 frame, a connectionslidable with reference to the said pivoted frame and hamfiiigpivot alattachment with the said trip, 'and-fa spring interposed between thesaid connection' and frame to hold the trip and part-s in normalposition.

2. In railway signaling means, the combination of a rock shaft providedAwith a rip an eye-bolt having pivotal connection part projecting fromsaid-shaft," and a spring mounted upon'the e' s confined between a stopther'ef "andi housing and 'normally Vexertin holdfthe rock shaft andtrip in 3.fIn combination, a roc' p mounted upon the vrock shaft to;v lipendent movement,- a trip-slidable vwith ref;V erence io said frame,moans-i l"ini )arting rotary 'movement to said yrock shat, connectingymeans between sald'rock shaft and tive position. The flexibleconnection 32 7o other operator, of impending danger so that speed tosuch an extent as to obviate a cas-i eindc A whistle 42 or other type ofsignal is compressedV air escaping from -the pipe .40'

with, thereby holding said lever 35 away from on, thereby drawom the`lever 35 which being released moves under the influinf-2i givenposition.

y trip J'no impair sidingmovement-to' th laiiter,

l said frame and suppoift foo hold-Said-frsnne `tween Asaid .trip androok shai'@ 'niean for imparting a turning movmem to the rock BERNARDLEO'MCDGNGUGH-1LS.) `shaft-eitherfo rojeot o1 Withdraw the said ,itripLa pivoted `connection with the' pivoted frame, and pv-V 1 f 1 1 lAot'edlco'nue/tion" Withxtile frame-loose ipon and @yielding connectionbetwen'the afore` the lookshaift, and a Spring interposedfbe- V'tweenthe. said pivote-d fram@v and bolt find ynormally exerting' a'pressurejto' hold the i4.. In oombinop'on, a rock shaft, a himno looseupon said 'rook shaft! altip sldable in the frame, a-:rsiokandf pinionconnotonbepartsn givenposition.

. *In*A testimony whereof We affix oiufsgna-A tures in' presnoo of twoWitnesses'. CHARLES 1,. DEARDUREF-' EL. sj '1- 'Witnesfses g A M.'JQREESL i ame; a bolt having sliiable p PAUL V. HELM,"

